adam: the u.s. is escalating its involvement in the syrian crisis, sending patriot missile batteries to turkey plus 400 ground troops. it is all part of a nato effort to protect turkey from possible missile attacks coming from syria. how much further could the u.s. military be dragged into a region unraveling by the day? we want to ask peter brookes, senior fellow at heritage foundation. are we getting a quack mire sending troops, 400 of them and the patriot missile batteries? >> no, i don't think so. this makes sense. it is symbolic for the turkey, major ally in that part of the world. in case assad regime fires missiles into turkey or fired at the rebels and end up in turkey. there has been a lot of stuff going on along the border. this will protect turkey, our nato ally, from attack. adam: will take several weeks to set up the patriot missile batteries. >> that's right. adam: if they need the batteries to protect them do they have time for that? isn't the assad regime on its last leg now? >> that